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OpenStudy (anonymous):
When the quadratic equation y = (x - 4)(2x + 5) is written in standard form, what is the value of the coefficient "b"? Answer 2 3 -3 -20
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OpenStudy (anonymous):
FOIL it out... F: x*2x O: +5x I: -4*2x L: -4*5 the middle term is obtained by combining the O and I (outside plus inside terms)
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